Explosive eruptions Flashcards
Where are explosive eruptions located at
Convergent plate boundaries
What type of lava does explosive eruptions have
Rhyolite and andesite
What are the lava characteristics of explosive erruptions
Acidic, high viscosity and lower temperature at eruption
What is the eruption style of explosive eruptions
Violent bursting of gas bubbles, explosive, vent often shatters
What materials are erupted in an explosive eruption
Gas, Dust, Ash, Lava bombs, Tephra
How frequent are eruptions of explosive eruptions
Long periods with no activity
What ship volcano has an explosive eruption
Strato volcano
Why is the eruption explosive
The acid magma does not flow so easily so it plugs the events and pressure builds up until an explosion
What is a caldera
Volcanic craters, occurs when an explosive eruption magma lessens so there is less holding the above rock put so the above rock falls
What is magnitude
Amount of material erupted
What is intensity
The speed at which the material is erupted
What is the VEI
Combines magnitude and intensity into a single scale 1-8
volume erupted and height it reaches but not useful for effusive volcanoes
